//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#include "../../shaderModel.hlsl"

struct FarFrustumQuadConnectV
{
	float4 hpos : TORQUE_POSITION;
   float2 uv0 : TEXCOORD0;
   float3 wsEyeRay : TEXCOORD1;
   float3 vsEyeRay : TEXCOORD2;
};

struct FarFrustumQuadConnectP
{
	float4 hpos  : TORQUE_POSITION;
   float2 uv0 : TEXCOORD0;
   float3 wsEyeRay : TEXCOORD1;
   float3 vsEyeRay : TEXCOORD2;
};


float2 getUVFromSSPos( float3 ssPos, float4 rtParams )
{
	float2 outPos = ( ssPos.xy + 1.0 ) / 2.0;
	outPos.y = 1.0 - outPos.y;
	outPos = ( outPos * rtParams.zw ) + rtParams.xy;
	return outPos;
}
